Jonathan Gottfried, 26, and Mike Swift, 27

Cofounders, Major League Hacking

MLH is a student hackathon league that supports over 200 weekend-long invention competitions that brings together more than 65,000 students from around the world in competition, community-building and commuter science skill-building. It's a registered B-corp with some $1M in funding to date. MLH isn't the pair's first move into organized hackathons: Swift founded Hacker League, acquired by Intel in 2013, while Gottfried worked as a director at StartupBus, a regional coding gathering on wheels.